tofsee | 7a8aec1488799c958cf0ce303cdb68ff66ef92402e1d3f748ea1c2ae0e981af8

General

Target

47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe
Size

263KB
MD5

47f7499a4be2f2bca257ec130a29c799
SHA1

cbc60f99cb19c72c50d2a30adcc076ea29c43415
SHA256

7a8aec1488799c958cf0ce303cdb68ff66ef92402e1d3f748ea1c2ae0e981af8
SHA512

5f154f95c37d273548d3e3a1b95f1b46a910e1b1e98d5bb1178f2fec9058895a62e3f0376950e343a842a864c2a1e9eb2f1a72a534a41352e6671cf903e1f61f
SSDEEP

6144:3QSKph/WvuGSEP72hDKp0gKq4IT6Odt+q7Q2GOSMfc9x7:3PUdWvuGSEP72hY0gKI6s/1JI

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\hddrtcly = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2708 netsh.exe

pid	process
2708	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\hddrtcly\ImagePath = "C:\\Windows\\SysWOW64\\hddrtcly\\sqfrlhsi.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2756 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

sqfrlhsi.exe

pid process

2696 sqfrlhsi.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

sqfrlhsi.exe

description pid process target process

PID 2696 set thread context of 2756 2696 sqfrlhsi.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2056 sc.exe
2688 sc.exe
1264 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2756	svchost.exe

pid	process
2696	sqfrlhsi.exe

description	pid	process	target process
PID 2696 set thread context of 2756	2696	sqfrlhsi.exe	svchost.exe

pid	process
2056	sc.exe
2688	sc.exe
1264	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.execmd.exesc.exesc.exenetsh.exesqfrlhsi.execmd.exesc.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sqfrlhsi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exesqfrlhsi.exe

description	pid	process	target process
PID 2336 wrote to memory of 2980	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 2980	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 2980	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 2980	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 2376	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 2376	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 2376	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 2376	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	cmd.exe
PID 2336 wrote to memory of 1264	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 1264	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 1264	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 1264	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2688	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2688	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2688	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2688	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2056	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2056	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2056	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2056	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	sc.exe
PID 2336 wrote to memory of 2708	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	netsh.exe
PID 2336 wrote to memory of 2708	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	netsh.exe
PID 2336 wrote to memory of 2708	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	netsh.exe
PID 2336 wrote to memory of 2708	2336	47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe	netsh.exe
PID 2696 wrote to memory of 2756	2696	sqfrlhsi.exe	svchost.exe
PID 2696 wrote to memory of 2756	2696	sqfrlhsi.exe	svchost.exe
PID 2696 wrote to memory of 2756	2696	sqfrlhsi.exe	svchost.exe
PID 2696 wrote to memory of 2756	2696	sqfrlhsi.exe	svchost.exe
PID 2696 wrote to memory of 2756	2696	sqfrlhsi.exe	svchost.exe
PID 2696 wrote to memory of 2756	2696	sqfrlhsi.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2336

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hddrtcly\
2⤵
- System Location Discovery: System Language Discovery
PID:2980

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sqfrlhsi.exe" C:\Windows\SysWOW64\hddrtcly\
2⤵
- System Location Discovery: System Language Discovery
PID:2376

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create hddrtcly binPath= "C:\Windows\SysWOW64\hddrtcly\sqfrlhsi.exe /d\"C:\Users\Admin\AppData\Local\Temp\47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1264

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description hddrtcly "wifi internet conection"
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2688

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start hddrtcly
2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2056

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2708

C:\Windows\SysWOW64\hddrtcly\sqfrlhsi.exe
C:\Windows\SysWOW64\hddrtcly\sqfrlhsi.exe /d"C:\Users\Admin\AppData\Local\Temp\47f7499a4be2f2bca257ec130a29c799_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\hddrtcly\sqfrlhsi.exe

Filesize
10.2MB

MD5
b8b8b4ed686d89b5aa68f329c880142e

SHA1
d465dd272b047491cd7e727e399615616b1616f8

SHA256
1013f8e04f61bec2cd8c7780e66ddf724cde0124371b78e3c222065a8690dcf0

SHA512
fcdd1c1d24d398388872f6327a6ddd3ae511d2000df3fc3834314cbd1053a60552f9c217e725a77a2df1026b0cf6fefef0be37c214ba16c969eaa8e956c987df

Download Submit
memory/2336-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2336-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2336-1-0x0000000000A30000-0x0000000000B30000-memory.dmp

Filesize
1024KB

Download
memory/2336-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2336-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2336-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-17-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/2756-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2756-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2756-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2756-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads